Influence of heat treatment on microstructure, mechanical and corrosion behavior of WE43 alloy fabricated by laser-beam powder bed fusion

International Journal of Extreme Manufacturing, Год журнала: 2023, Номер 6(1), С. 015001 - 015001

Опубликована: Сен. 18, 2023

Highlights WE43 parts with favorable forming quality are fabricated by laser-beam powder bed fusion and the interaction between laser beam is revealed. After suitable heat treatment, anisotropic microstructure eliminated, nano-scaled Mg 24 Y 5 particles homogeneously precipitated. The yield strength ultimate tensile improved to (250.2 ± 3.5) MPa (312 3.7) MPa, respectively, while elongation still maintains at high level of 15.2%. Homogenized inhibits micro galvanic corrosion promotes development passivation film, thus decreasing degradation rate an order magnitude. porous scaffolds offer a environment for cell growth.

Язык: Английский

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Stress corrosion cracking of magnesium alloys: A review

Journal of Magnesium and Alloys, Год журнала: 2023, Номер 11(6), С. 1906 - 1930

Опубликована: Июнь 1, 2023

Magnesium (Mg) alloys have been widely used in automobile, aviation, computer, and other fields due to their lightweight, high specific strength stiffness, low pollution, good electromagnetic shielding performance. However, the chemical stability of Mg is poor, especially corrosive medium environment with stress corrosion sensitivity, which causes sudden damage structural components restricts application field. In recent years, owing increasing failure rate engineering structures caused by alloys, it has become necessary understand pay more attention cracking (SCC) behavior alloys. this paper, SCC mechanisms test methods summarized. The research progress on reviewed from aspects alloying, preparation process, surface modification, medium, strain rate. More importantly, future trends field also proposed.

Язык: Английский

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Mechanically propelled ion exchange regulates metal/bioceramic interface characteristics to improve the corrosion resistance of Mg composite for orthopedic applications

Ceramics International, Год журнала: 2024, Номер 50(13), С. 23124 - 23134

Опубликована: Апрель 3, 2024

Язык: Английский

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Bio-high entropy alloys: Progress, challenges, and opportunities

Frontiers in Bioengineering and Biotechnology, Год журнала: 2022, Номер 10

Опубликована: Сен. 8, 2022

With the continuous progress and development in biomedicine, metallic biomedical materials have attracted significant attention from researchers. Due to low compatibility of traditional metal implant with human body, it is urgent develop new biomaterials excellent mechanical properties appropriate biocompatibility solve adverse reactions caused by long-term implantation. High entropy alloys (HEAs) are nearly equimolar five or more elements, huge compositional design space properties. In contrast, biological high-entropy (Bio-HEAs) expected be a bio-alloy for biomedicine due their tunable This review summarizes composition system Bio-HEAs recent years, introduces bone adaptation, finally puts forward following suggestions direction Bio-HEAs: improve theory simulation studies design, quantify influence composition, process, post-treatment on performance Bio-HEAs, focus loss under actual service conditions, hoped that clinical application medical alloy can realized as soon possible.

Язык: Английский

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Current Research Studies of Mg–Ca–Zn Biodegradable Alloys Used as Orthopedic Implants—Review

Crystals, Год журнала: 2022, Номер 12(10), С. 1468 - 1468

Опубликована: Окт. 17, 2022

Biodegradable alloys and especially magnesium-based are considered by many researchers as materials to be used in medicine due their biocompatibility excellent mechanical properties. have applications the medical field particular obtaining implants for small bones of feet hands, ankles, or joints. Studies shown that Mg, Zn, Ca found significant amounts human body contribute effectively efficiently healing process bone tissue. Due its biodegradability, magnesium alloys, including Mg–Ca–Zn manufacture implants, do not require a second surgery, thus minimizing trauma caused patient. Other studies performed system with zinc variation between 0 8 wt.% calcium up 5 wt.%, showing high biocompatibility, adequate properties, Mg2Ca Mg6Ca2Zn compounds microstructure. Biocompatibility is an essential factor use these materials, so some investigations cell viability values 95% 99% compared control case Mg–0.2Ca–3Zn alloy. In vivo analyses also showed no adverse reactions, minimal H2 release. The aim this review includes aspects regarding microstructure analysis degradation mechanisms specific environment highlights rate alloy rapid corrosion alloys.

Язык: Английский

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Research progress on corrosion behaviors and biocompatibility of rare-earth magnesium alloys in vivo and in vitro

Journal of Rare Earths, Год журнала: 2023, Номер 41(12), С. 1827 - 1842

Опубликована: Март 11, 2023

Язык: Английский

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Optimization of Machining Parameters to Minimize Cutting Forces and Surface Roughness in Micro-Milling of Mg13Sn Alloy

Micromachines, Год журнала: 2023, Номер 14(8), С. 1590 - 1590

Опубликована: Авг. 12, 2023

This comprehensive study investigates the micro-milling of a Mg13Sn alloy, material considerable interest in various high-precision applications, such as biomedical implants. The main objective was to explore optimizations variable feed per tooth (fz), cutting speed (Vc), and depth cut (ap) parameters on key outcomes process. A unique experimental setup employed, employing spindle capable achieving up 60,000 revolutions minute. Additionally, leveraged linear slides backed by micro-step motors facilitate precise axis movements, thereby maintaining resolution accuracy 0.1 μm. Cutting forces were accurately captured mini dynamometer subsequently evaluated based peak valley values for Fx (tangential force) Fy (feed force). results revealed clear complex interplay between varied their subsequent impacts surface roughness. An increase rate significantly increased forces. However, found decrease noticeably with elevation speed. Intriguingly, tangential force (Fx) consistently higher than (Fy). Simultaneously, determined that roughness, denoted Sa values, direct proportion rate. It also roughness decreased recommends parameter combination fz = 5 µm/tooth rate, Vc 62.8 m/min speed, ap 400 µm maintain value less 1 while ensuring an optimal removal machining time. derived from this offer vital insights into alloys contribute current body knowledge topic.

Язык: Английский

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Magnesium-Based Temporary Implants: Potential, Current Status, Applications, and Challenges

Journal of Functional Biomaterials, Год журнала: 2023, Номер 14(6), С. 324 - 324

Опубликована: Июнь 17, 2023

Biomedical implants are important devices used for the repair or replacement of damaged diseased tissues organs. The success implantation depends on various factors, such as mechanical properties, biocompatibility, and biodegradability materials used. Recently, magnesium (Mg)-based have emerged a promising class temporary due to their remarkable strength, biodegradability, bioactivity. This review article aims provide comprehensive overview current research works summarizing above-mentioned properties Mg-based use implants. key findings from in-vitro, in-vivo, clinical trials also discussed. Further, potential applications applicable fabrication methods reviewed.

Язык: Английский

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A review on developing high-performance ZE41 magnesium alloy by using bulk deformation and surface modification methods

Journal of Magnesium and Alloys, Год журнала: 2023, Номер 11(3), С. 776 - 800

Опубликована: Март 1, 2023

Magnesium (Mg) alloys are generally used in light-weight structural applications due to their higher specific strength. However, the usage of these Mg is limited poor formability at room temperature, which attributed lower count slip systems associated with hcp crystal structure. To address limitations, several new magnesium and also many processing strategies have been developed reported literature. ZE41 an alloy significant quantities zinc (Zn) rare earth (RE) elements has emerged as a promising material for aerospace, automotive, electronics, biomedical other industries. make this more competitive viable, it should possess better mechanical corrosion properties. Hence, current paper reviews effect bulk on grain refinement, microstructural modification, corresponding changes behaviour alloy. Further, various surface modification techniques altering microstructure properties such wear briefly summarized presented. This review discusses challenges future perspectives developing high-performing alloys.

Язык: Английский

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Multifunctional metal–organic frameworks for wound healing and skin regeneration

Materials & Design, Год журнала: 2023, Номер 233, С. 112252 - 112252

Опубликована: Авг. 18, 2023

Various wounds caused by burns, trauma, surgery, and genetic irregularities, including acute chronic wounds, pose a huge burden on global healthcare. Many therapeutic strategies, such as nanomedicine regenerative medicine, have been applied to wound repair skin regeneration. As promising exciting nanomaterial, metal-organic frameworks (MOFs) encompass many desirable properties, crystalline porous structure, tunable size, good mechanical stability, large specific surface area, exceptional chemical stability. Most importantly, the performance of MOFs can be modulated changing synthesis steps conditions. release metal ions modulate cellular behaviors kill various microorganisms, which meets this dual agent strategy for healing Additionally, act carriers delivering bioactive agents in desired manner. Recently, an increasing number researchers conducted studies applying Based this, we perform study report current status further perspective MOFs-based strategy. Furthermore, molecular process fabrication were also discussed.

Язык: Английский

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